Article
Chemistry, Multidisciplinary
Peili Zhang, Tao Song, Dehua Zheng, Fusheng Li, Xiujuan Wu, Ke Fan, Licheng Sun
Summary: The NiFeBa material prepared by co-electrodeposition showed promising performance as an efficient catalyst for electrocatalytic water oxidation. The doped Ba ions played a crucial role in stabilizing the Ni3+ species and adjusting the catalytic mechanism, leading to an enhancement of catalytic efficiency and performance.
Article
Chemistry, Physical
Nejc Rozman, Peter Nadrah, Renaud Cornut, Bruno Jousselme, Marjan Bele, Goran Drazic, Miran Gaberscek, Spela Kunej, Andrijana Sever Skapin
Summary: The study demonstrates that co-catalysts can enhance the efficiency of TiO2 photocatalysts, especially in the photocatalytic degradation of isopropanol and electrochemical water-splitting reactions. Among them, platinum-containing samples show the best HER activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Kaixun Li, Dongmei Feng, Yun Tong
Summary: This paper presents a novel hybrid electrocatalyst designed for overall water splitting, which exhibits superior bifunctional performance by engineering the electronic structure and surface properties of the material. The catalyst showed low overpotentials for hydrogen and oxygen evolution reactions at a high current density, and the water electrolyzer based on this catalyst achieved a small potential for a high current density. These results indicate the promising application potential of this electrode for hydrogen generation.
Article
Chemistry, Physical
Liang Li, Kai Chao, Xiaowei Liu, Siyue Zhou
Summary: A series of ultra-evenly La-decorated CoMoP composites were prepared using La-doped Co-ZIF-67 as precursors by a selective corrosion and sequential in situ phosphorization strategy. The introduction of La ions in transition metal phosphides' structure effectively optimized the electronic configuration, resulting in an excellent bifunctional electrocatalyst for overall water splitting. Among the synthesized La-decorated CoMoP materials, the 5% La-doped composite exhibited the most outstanding performance for HER and OER in 1 M KOH.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Engineering, Environmental
Qiaowei Wang, Runze He, Fulin Yang, Xinlong Tian, Huaiming Sui, Ligang Feng
Summary: Electrochemical water splitting is a promising technique for green hydrogen production, but requires high-performance and low-cost catalysts. CoP-based materials are favored due to their catalytic activity and bifunctional properties. Heteroatom-doping can optimize the active center structures. This review discusses the effects, mechanisms, and recent progress of heteroatom-doped CoP catalysts for water-splitting electrocatalysis, providing insights for understanding catalysis and catalyst development.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wei Li, Bomin Feng, Lingya Yi, Junying Li, Weihua Hu
Summary: This study successfully fabricated tremella-like Ru-doped Co-V layered double hydroxide nanosheets on Ni Foam, exhibiting excellent bifunctional catalytic activity towards HER and OER. Utilizing Ru-CoV-LDH/NF as bifunctional electrocatalyst in an alkali electrolyzer led to high electrolytic current density at a significantly low cell voltage, showing superior performance compared to other electrolysers.
Article
Chemistry, Physical
Liang Li, Yongwei Lu, Xiaowei Liu, Xinran Wang, Siyue Zhou
Summary: The ultra-evenly Rh-doped Co2Fe-P composite, fabricated through a solvothermal and in-situ phosphorization strategy, exhibits excellent electrochemical performance in both OER and HER due to the doping of Rh within the structure. The composite shows low overpotentials for both reactions in acidic and alkaline electrolytes, making it a promising bifunctional catalyst for overall water splitting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Jianjun Zhu, Xinyu Zheng, Chenchen Liu, Yikai Lu, Yu Liu, Di Li, Deli Jiang
Summary: Efficient, stable, and low-cost bifunctional catalysts for overall water splitting are challenging to design. In this study, Zn and F co-doped NiCoP nanoprism arrays were synthesized and showed high electrocatalytic activity for both HER and OER. DFT calculations demonstrated that the simultaneous doping of NiCoP with Zn and F ions can regulate the electronic configuration and optimize the adsorption energy, thereby enhancing the catalytic activities. This work highlights the effectiveness of the cation-anion co-doping strategy for developing highly active transition metal phosphides electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Chenyun Zhang, Yongqi Fu, Wei Gao, Te Bai, Tianyi Cao, Jianjiao Jin, Bingwei Xin
Summary: Deep eutectic solvents (DESs) offer opportunities for the preparation of catalysts for electrolytic water splitting, shaping nanomaterials and tuning their performance as media, templates, and electrolytes, with the advantages of high safety and designability.
Article
Chemistry, Multidisciplinary
Zemian Ma, Xueying Ma, Wei Luo, Yimin Jiang, Wei Shen, Rongxing He, Ming Li
Summary: Vanadium-doped cobalt carbonate hydroxide (V-CoCH) was synthesized and found to be an efficient catalyst for water splitting. Vanadium species dissolved partially during the early stages of the oxygen-evolution reaction (OER), which led to self-etching and surface reconstruction of the catalyst, resulting in an increased number of active sites and oxygen vacancies. The synergy between V-doping and oxygen vacancies improved the catalytic activity, with V-CoCH demonstrating exceptional OER performance with an overpotential of 183 mV at 10 mA cm(-2). The presence of vanadium and oxygen vacancies played crucial roles in electron regulation and enhancement of OER performance.
Article
Chemistry, Physical
Yu Liu, Yingying Xing, Xinyu Zheng, Shengjie Xu, Di Li, Deli Jiang
Summary: This study successfully designs and fabricates a novel CrCo2P(Vp) NWs catalyst and demonstrates the enhancement of electrocatalytic activity through doping and vacancy engineering. The catalyst exhibits superior performance in both HER and OER reactions, and requires low overpotentials for overall water splitting. The results of this study are significant for the design of effective, earth-abundant, and stable bifunctional electrocatalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Chenyi Zhang, Xiaoqiang Du, Yanhong Wang, Xinghua Han, Xiaoshuang Zhang
Summary: This study presents the synthesis of NiSe2@NixSy hybrid materials with a 3D electrode structure for efficient water splitting. The material exhibits superior OER and HER performance, with low overpotentials, and a cell voltage as low as 1.53 V for a current density of 10 mA/cm(-2). Additionally, density functional theory calculations suggest the active species in catalysis and the promising electronic conductivity of the NiSe2@NixSy-1 hybrid material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Yan Hu, Hongbo Yu, Luoluo Qi, Jiaxin Dong, Puxuan Yan, Tayirjan Taylor Isimjan, Xiulin Yang
Summary: This study presents a rational design and simple preparation method for a bifunctional MoS2@CoP/CC catalyst, showing excellent electrocatalytic performance and high stability under alkaline and acidic conditions.
Article
Engineering, Environmental
Shoushuang Huang, Zhiqiang Jin, Ping Ning, Chunyan Gao, Ye Wu, Xiao Liu, Peijun Xin, Zhangxian Chen, Yong Jiang, Zhangjun Hu, Zhiwen Chen
Summary: The synergistic achievement of phosphorus (P)-doped NiS2 hierarchical architectures with sulfur vacancies has led to the creation of efficient catalysts with outstanding electrocatalytic activities for hydrogen and oxygen evolution reactions. The P dopant not only serves as active sites but also activates neighboring Ni and S sites, while the synergistic effect of P-doping and sulfur vacancies further enhances the electrochemical activities, providing a directive strategy for efficient non-noble metal catalysts in energy conversion and storage.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Xiaoqiang Du, Yangyang Ding, Xiaoshuang Zhang
Summary: The Se-doped Co3O4@CeO2 nanoparticle-dotted nanoneedle arrays (SCCN-1) exhibit excellent performance in both hydrogen evolution reaction and oxygen evolution reaction, showing outstanding stability in overall water splitting process.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Applied
Taotao Li, Shijie Ma, Shixin Feng, Ruxin Ren, Li Zhang, Huihu Lu, Guoping Li, Yaohui Zhang, Wei Fan, Chengzhi Liu, Diaoyu Zhou
Summary: In this study, electrolysis was used to distinguish 2205 duplex steel samples with different corrosion performance. X-ray diffraction, scanning electron microscopy, and electron backscattering diffraction were employed to characterize the microstructure and corrosion behavior of regions with superior and inferior corrosion performance.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2022)
Article
Chemistry, Physical
Xing Yue, Xiqiang Huang, Jingwei Li, Chaoxiang Su, Yaxin Zhang, Yaohui Zhang, Bo Wei, Zhe Lv
Summary: In this study, the surface morphology of CCO cathode was reconstructed through a reduction and re-oxidation process, leading to significant improvement in cathode performance. The ORR activity of the CCO cathode was notably enhanced after the treatment, which was attributed to the increased specific surface area and enhanced oxygen adsorption ability.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Yabin Shen, Xiaojing Yao, Jianhua Zhang, Shaohua Wang, Dongyu Zhang, Dongming Yin, Limin Wang, Yaohui Zhang, Junhua Hu, Yong Cheng, Xifei Li
Summary: Na-doped high-nickel low-cobalt cathode materials can greatly improve the lithium storage performance and cycle life, as well as enhance the electrode-electrolyte interface and thermal stability.
Review
Surgery
Liang Hu, Yijun Wu, Fangyu Ju, Yaohui Zhang, Weilin Wang
Summary: This study reevaluated the risk of developing thyroid cancer (TC) after solid organ transplantation (SOT) based on the latest literature. The results showed that patients undergoing different solid organ transplantations, especially kidney transplantation, had an increased risk of developing TC. Therefore, aggressive and regular tumor screenings after SOT may improve patient prognosis.
Article
Respiratory System
Hongxia Ma, Qian Zhang, Yanwen Zhao, Yaohui Zhang, Jingjing Zhang, Guoqing Chen, Yuan Tan, Qin Zhang, Qianqian Duan, Tingting Sun, Chuang Qi, Fengsen Li
Summary: This study collected and analyzed clinicopathological and genomic data of lung cancer patients with and without COPD. The results showed that COPD patients had higher mutation frequency and tumor immunity, indicating potential benefits from immunotherapy.
INTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE
(2022)
Article
Mechanics
Menglong Liu, Lun Li, Yaohui Zhang, Gongfa Chen, Fangsen Cui
Summary: This study proposes a novel Gauss-Lobatto-Legendre-based high-order semi-analytical finite element method (GLL-SAFE) to accurately calculate the dispersive natures of guided waves in complex waveguides. Through the combination of GLL node collation and Lobatto quadrature, GLL-SAFE shows faster solution speed and reduced matrix inversion error. The results demonstrate smaller average relative errors and higher calculation efficiency compared to the conventional Gauss-SAFE.
INTERNATIONAL JOURNAL OF APPLIED MECHANICS
(2022)
Retraction
Orthopedics
Xinwen Zhao, Wensen Jing, Zhe Yun, Xun Tong, Zhao Li, Jiajia Yu, Yaohui Zhang, Yabin Zhang, Zhixue Wang, Yanhua Wen, Heping Cai, Jun Wang, Baoan Ma, Haien Zhao
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2022)
Article
Engineering, Environmental
Kai Wang, Jiangchun Chen, Fengxiao Hou, Han Wang, Yaohui Zhang, Xiaobin Zhong, Yuexian Song, Yangang Zhang, Zhiwen Zhang, Hantao Liu, Junfei Liang, Hua Wang
Summary: The transport capacity of lithium ions in metal organic frameworks (MOFs) is improved by optimizing the pore structure and enhancing electronic conductivity through the growth of Al-MOF particles on reduced graphene oxide (RGO) layer. The optimized Al-MOF@RGO anode exhibits high specific capacity after 1000 cycles, indicating its potential for commercial applications in lithium-ion batteries (LIBs).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Kai Wang, Jianming Sun, Haoqing Yang, Yaohui Zhang, Xiaobin Zhong, Yuexian Song, Fengxiao Hou, Yangang Zhang, Zhiwen Zhang, Han Wang, Jian Zhu, Hongtao Sun, Junfei Liang
Summary: A 3D interconnected amorphous carbon nanowire network with developed hierarchical pores was prepared from sub-micron brick-like crystal Al-MOF through rapid heat and linker removal processes. The 3D amorphous carbon electrode exhibited superior rate performance and delivered a capacity as high as 400 mAh/g under a current density of 1.0 A/g, even after 1000 cycles, with an ultra-high capacity retention rate of 101.8%. This method represents a critical step toward realizing the full potential of MOF-derived carbon electrode materials in practical LIBs applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Lei Lin, Qiang Fu, Junbei Hu, Ran Wang, Xianjie Wang
Summary: This article introduces a method to fabricate a self-supported nickel phosphosulfide nanosheet electrocatalyst on carbon cloth and enhance its catalytic activity through argon etching. The etching process resulted in improved performance in both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The characterization results showed that the etching created an amorphous layer, increasing the number of active sites and modulating their electronic structures. These nickel phosphosulfide nanosheets and the etching process show promise for overall water splitting in alkaline media.
Article
Environmental Sciences
Dong Guo, Hantao Liu, Yaohui Zhang, Yingchun Wang, Yaxuan Xiong
Summary: Researchers have successfully developed a form-stable phase change material using semi-coke ash as the skeleton material and solar salt as the phase change material. The sample A55, with a 50 wt% solar salt content, exhibited the best performance, with a thermal energy storage density of 483 J/g in the temperature range of 100 to 450 degrees Celsius. The A55 sample also showed excellent compressive strength, reaching 86.12 MPa, as well as good chemical compatibility and thermal stability.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Electrical & Electronic
Jian Yang, Xun Liu, Xiaofeng Jiang, Yaohui Zhang, Shuangwu Chen, Huasen He
Summary: To enhance internal security of UAV swarm, a blockchain-based UAV trusted self-organizing networking mechanism (BC-UTSON) was developed. This mechanism utilizes three key technologies including UAV practical Byzantine fault tolerance (U-PBFT), blockchain-based multiweighted subjective logic (BMWSL) scheme, and trusted path quality-aware dynamic routing (TPDR) mechanism. Experimental results show that BC-UTSON performs better than nonblockchain-based mechanisms in UAV swarm.
IEEE VEHICULAR TECHNOLOGY MAGAZINE
(2023)
Review
Chemistry, Multidisciplinary
Yitao He, Yujie Dong, Yaohui Zhang, Yongtao Li, Haijin Li
Summary: The intercalation of anions into cost-effective graphite electrode provides a high operating voltage, making dual-ion batteries (DIBs) a promising energy storage device. The graphene in graphite, which has rarely been researched, can utilize its ultra-high elastic stiffness and reversible lattice expansion to increase the storage capacity of anions. This review proposes a blister model using high elasticity of graphene blisters and their possible formation mechanism, suggesting their significance in the development of cathode materials for DIBs.
Article
Chemistry, Physical
Yue-Xian Song, Jiao Wang, Xiao-Bin Zhong, Kai Wang, Yao-Hui Zhang, Han-Tao Liu, Li-Xin Zhang, Jun-Fei Liang, Rui Wen
Summary: This study presents a novel additive design principle to enhance the reversible and dendrite-free zinc anode in aqueous batteries. By introducing Dibenzene-sulfonamide (BBI) into ZnSO4 electrolyte, BBI-derivate is preferentially chemisorbed on Zn surface to protect against corrosion and suppress hydroxide sulfate formation. Furthermore, the decomposition of BBI leads to the in-situ construction of a robust organic-inorganic hybrid solid electrolyte interphase on Zn anode, which regulates the Zn-anode interfacial chemistry to enable uniform Zn deposition. Consequently, the Zn symmetric cells exhibit prolonged cycling lifespan and high capacity. This study provides insights into the additive regulation mechanisms and offers a promising approach to solve the anode nuisance in aqueous metal batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yi-Fan Cui, Si-Da Jiang, Qiang Fu, Ran Wang, Ping Xu, Yu Sui, Xian-Jie Wang, Zhi-Liang Ning, Jian-Fei Sun, Xun Sun, Alexander Nikiforov, Bo Song
Summary: In this study, a core-shell FeCoNiMoAl-based high-entropy alloy (HEA) was established as a promising electrocatalyst for oxygen evolution reaction (OER). The shell with crystalline-amorphous (c-a) heterostructure reduces the electron transfer resistance and generates more active sites, while the crystalline core improves the conductivity and self-supporting ability. The HEA electrodes show superior OER performance in terms of overpotential and stability, providing a potential route for highly efficient electrocatalysts in industrial water electrolysis and energy conversion processes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
